Influence of Mixed Fiber on Durability of High Performance Concrete For Bridge Deck Pavement
In order to explore the application effect of fiber materials to improve the durability of high performance concrete for bridge deck pavement,the compressive strength and mass loss rate of mixed fiber high performance concrete after freeze-thaw cycle and dry-wet cycle were tested,and the durability of concrete was analyzed according to the test results.The results show that with the increase of fiber content,the compressive strength and sulfate corrosion mass loss rate of HPC decrease in the early stage and increase in the later stage.The sulfate corro-sion resistance of concrete with mixed steel fiber and basalt fiber is better than that of single fiber concrete.Adding appropriate amount of steel fiber and basalt fiber can effectively improve the freezing resistance of HPC.When the total fiber content is 1.2%,the freezing resistance of HPC reaches a high level.
国家科技期刊平台
NSTL
万方数据
